Some designs are  REFLECTIVE 
Fabric:
100% cotton canvas
Feature:
Closure: Snaps, Flap
Overall size: 12" X 8 ½” X 4 ½”
Designed With A Large Main Compartment can fit A Tablet, Phone, Multitool And More!
The Front Pocket (5 ½” X 6" X ½”)
Contains A Hard Board Stiffener For Added Structure And Security
The Adjustable And Detachable Shoulder Strap Can Extend To 42”
Measures 12" X 8 ½” X 4 ½” 
The front pocket is perfect for storing additional everyday essentials and includes two canvas slots and five elastic straps to carry tools and pens. Your contents won’t be going anywhere as the dual snap button flap closure securely covers the pockets and gear. In addition, a hardboard stiffener insert provides your army map bag with added structure and security. The adjustable and detachable shoulder strap can fully extend to 42 inches,